Soot Emission Analysis in Combustion of Biogas Diesel Dual Fuel Engine
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Submitted
February 18, 2017
Published
June 30, 2017
Abstract
Soot emission in bio-gas diesel dual fuel engine has been analyzed by numerical simulation with 2-stape soot formation model of Magnussen. The result shows that soot formation mainly occurred in diffusion combustion phase of diesel pilot jet. Soot peak value is proportional to the first peak value of ROHR, and is found at around the same crank angle position with the second peak of ROHR. At a given engine speed and diesel content in the fuel, the highest soot peak value is obtained with slightly rich mixture whereas soot concentration in exhaust gas increases monotonically with increasing equivalence ratio. Increasing diesel content in the fuel increases both soot peak value and soot concentration in exhaust gas. At a given equivalence ratio and diesel content in the fuel, engine speed has a moderate effect on soot formation rate but a significant effect on soot combustion rate. Soot concentration in the exhaust gas practically vanished as equivalence ratio under 0.98 and 15% diesel content in the fuel. This is the ideal operation regime of bio-gas diesel dual fuel engine in view of soot emission control.
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References
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2. Nabi N. M. and Hustad E: Influence of oxygenates on fine particle and regulated emissions from a diesel engine. Fuel, 2012, 93, pp. 181-188.
3. Bui Van Ga, Tran Van Nam, Le Minh Tien, Bui Thi Minh Tu: Combustion Analysis of Biogas Premixed Charge Diesel Dual Fuelled Engine. International Journal of Engineering Research & Technology (IJERT), Vol. 3 Issue 11, November-2014, pp. 188-194
4. B. Ashok, S. Denis Ashok, C. Ramesh Kumar: LPG diesel dual fuel engine-A critical review. Alexandria Engineering Journal (2015) 54, pp. 105-126.
5. A.M.L.M. Wagemakers, C.A.J. Leermakers: Review on the Effects of Dual-Fuel Operation, Using Diesel and Gaseous Fuels, on Emissions and Performance. SAE Paper 2012-01-0869.
6. L. Zhu, C.S. Cheung, W. Zhang, Z. Huang: Emission’s characteristics of a diesel engine operating on biodiesel and biodiesel blended with ethanol and methanol. Science Total Environment, 2010, 408, pp. 914-921.
7. C.H. Cheng, C.S. Cheung, T.L. Chan, S.C. Lee, C.D. Yao, K.S. Tsang: Comparison of emissions of a direct injection diesel engine operating on biodiesel with emulsified and fumigated methanol. Fuel, 2008, 87, pp. 1870-1879.
8. Tomita E, Kawahara N, Piao Z, Fujita S, Hamamoto Y.: Hydrogen combustion and exhaust emissions ignited with diesel oil in a dual fuel engine. SAE Paper 2001:2001-01-3503.
9. Tsolakis A, Hernandez J.: Dual fuel diesel engine operation using H2. Effect on particulate emissions. Energy & Fuels, 2005, 19, pp. 418-425.
10. Saravanan N, Nagarajan G: Combustion analysis on a DI diesel engine with hydrogen in dual fuel mode. Fuel, 2008, 87, pp. 3591-3599.
11. Saravanan N, Nagarajan G: An experimental investigation of hydrogen-enriched air induction in a diesel engine system. International Journal Hydrogen Energy, 2008, 33, pp. 1769-1775
12. Tree D.R. and Svensson K.I: Soot processes in compression ignition engines. Progress Energy Combustion Science, 2007, 33, pp. 272-309.
13. Smith O.I.: Fundamentals of soot formation in flames with application to diesel engine particulate emissions. Progress Energy and Combustion Science, 1981, 7, pp. 275-291.
14. Mustafi Nirendra N. and Raine Robert R.: A study of the emissions of a dual fuel engine operating with alternative gaseous fuels. SAE Paper 2008-01-1394.
15. Yoon S. H. and Lee C. S.: Experimental investigation on the combustion and exhaust emission characteristics of biogas-biodiesel dual-fuel combustion in a CI engine. Fuel Process Technology, 2011, 92, pp. 992-1000.
16. Luijten C.C.M. and Kerkhof E.: Jatropha oil and biogas in a dual fuel CI engine for rural electrification. Energy Conversion Management, 2011, 52, pp. 1426-1438.
17. J.M. Vignon, Bui Van Ga: Calcul de flammes de diffusion verticales par un modele integral. Joint Meeting the French and German Section of the Combustion Institute, 11-13 October 1995, Mulhouse, France,1995.
18. Bui Van Ga, Pham Xuan Mai, M. Brun, J.M. Vignon: Modele integral de flammes turbulentes de diffusion pour le calcul de la combustion Diesel. Entropie, 1999, 216, pp. 52-59.
19. Bui Van Ga, Le Van Lu: Integral Model for Soot Formation Calculation of Turbulent Diffusion Flames in Industrial Furnaces. 6th European Conference on Industrial Furnaces and Boilers, Estoril-Lisbon, Portugal, 02-05 April 2002
20. Zellat, M., et al.: Three Dimensional Modeling of Combustion and Soot Formation in an Indirect Injection Diesel Engine. SAE Paper 900254, 1990
21. Strauss, T. S., Schweimer, G. W.: Combustion in a Swirl Chamber Diesel Engine Simulation by Computation of Fluid Dynamics. SAE Paper 950280, 1995
22. Sera, M.A et al. CNG engine performance improvement strategy through advanced intake system. SAE Paper 2003-01-1937
23. Singh, S et al. : Modeling and experiments of dual fuel engine combustion and emissions. SAE Paper 2004-01-0092
24. R. Barzegar, S. Shafee and S. Khalilarya: Computational Fluid Dynamics Simulation of the Combustion Process, Emission Formation and the Flow Field in an In-Direct Injection Diesel Engine. Thermal Science 2013, Vol. 17, No. 1, pp. 11-23
25. B.F. Magnussen, B.H. Hjertager: On mathematical modeling of turbulent combustion with special emphasis on soot formation and combustion. Symposium (International) on Combustion, Volume 16, Issue 1, 1977, pp. 719-729
26. B.V.Ga, N.V.Hai, B.T.M.Tu, B.V.Hung: Utilization of Poor Biogas as Fuel for Hybrid Biogas-Diesel Dual Fuel Stationary Engine. International Journal of Renewable Energy Research, 2015, Vol. 5 , No. 4, pp. 1007-1015.
Authors
Ga, B. V., & Tu, B. T. M. (2017). Soot Emission Analysis in Combustion of Biogas Diesel Dual Fuel Engine. Environmental Science & Sustainable Development, 2(1), 67–79. https://doi.org/10.21625/essd.v2i1.55
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